linux-kernel - Re: [PATCH] ALSA: core: avoid -Wempty-body warnings

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Date:   Mon, 22 Mar 2021 12:26:45 +0100
From:   Takashi Iwai <tiwai@...e.de>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
        Arnd Bergmann <arnd@...db.de>, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ALSA: core: avoid -Wempty-body warnings

On Mon, 22 Mar 2021 11:31:10 +0100,
Arnd Bergmann wrote:
> 
> From: Arnd Bergmann <arnd@...db.de>
> 
> Building with 'make W=1' shows some warnings about empty function-style
> macros:
> 
> sound/core/pcm_memory.c: In function 'preallocate_pages':
> sound/core/pcm_memory.c:236:49: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
>   236 |                 preallocate_info_init(substream);
> 
> sound/core/seq_device.c: In function 'snd_seq_device_dev_register':
> sound/core/seq_device.c:163:41: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
>   163 |                 queue_autoload_drivers();
> 
> Change them to empty inline functions, which are more robust here.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Thanks, applied.


Takashi